(ET) Cutting the spindles to replace the bearings on the sweeper

[CZ Unit <cz alembic crystel com>]

So I've got a powered Elec-trak sweeper with bad shaft bearings. It 
vibrates, and broke the chain master link when I tried to fire it up 
this weekend. So new bearings are in order.

Hah. In order to remove the bearings you have to remove the wheels 
(circlips), and the wheel frames. That's the problem: The bolts that 
hold the spindles and frames to the main frame are shot. I can see where 
someone tried heat, breakers, etc to get them off to no effect. And you 
need to take that off to get the clearance to take the shaft out to get 
to the bearings to replace them. Of course.

So I have two choices: I can either cut off the spindles and get new 
ones, or I can cut into the slot that the shafts are in through to the 
outside of the assembly, rotate the bolts and shaft out, and hopefully 
have enough clearance to get the hub and bearings off. Then I'd have to 
re-weld the frame once fixed. Or put in a bolted plate so I can do this 
again in another 40 years.

Question: Are the spindles get-able? And what size bearings does this 
thing take; Home Despot doesn't have anything like them of course. So 
all of this has to be ordered online.

Chris